Answer: các cách để bảo quản thực phẩm
Phơi nắng và hun khói giúp loại bỏ hơi nước có trong thực phẩm. Trong khi muối chua giúp hạn chế sự phát triển của các vi khuẩn có hại và oxy hóa.
Gói hút Oxy xuất hiện rất nhiều trong các gói bánh, khô, trà, đậu,.. Với công dụng chính là loại trừ Oxy trong quá trình đóng gói. Gói giúp bảo vệ hàng hóa khỏi ngu cơ gây mốc và vi khuẩn phát sinh.
Bảo quản rau củ, trái cây trong tủ đông lạnh, sử dụng chất bảo quản thực phẩm
Explanation:
Answer:
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Explanation:
Drinking unclean water, eating contaminated food, or coming into contact with infectious excrement can all cause giardiasis. Wash your hands frequently and avoid drinking contaminated water to avoid giardiasis. If you have giardiasis, your doctor may prescribe antibiotics to help you get rid of the infection.
D. Ecstasy. MDMA is the pure form of ecstasy.
Living things need water in their cells. Water is the universal solvent - most of the chemicals a cell needs is dissolved and transported in water. Water is an environment where chemical reactions can occur and water is needed in many of those reactions - like the hydrolysis reaction (needed in the break down of food molecules). If a cell becomes dehydrated chemical reactions slow down. Chemical balance of the cell is changed as waste materials are not removed fast enough, food is not broken down, etc. Water also helps regulate the heat that can build up in a cell during chemical reactions. A dehydrated cell = increase in cell temp. Water content of a cell also affects the pH of a cell environment. Certain reactions occur better at certain pH. Homeostasis is maintaining a balance with the the environment. Without water the balance is upset.
